USV (Ultra Shear Viscometer)
The USV (Ultra Shear Viscometer) is a computer controlled instrument capable of fully automatic viscosity measurements up to 10,000,000 reciprocal seconds. Accurate measurement of dynamic viscosity at very high shear rates is of particular concern in the Automotive Industry. Lubricants developed for motor vehicle applications are typically non-Newtonian making it necessary to reproduce the shear rate found in engines when measuring the viscosity. Several international standards (ASTM, CEC) define procedures to measure the High Temperature High Shear (HTHS) viscosity at 150°C and 1,000,000 reciprocal seconds.
These capacities are enhanced by the simple to use software and a rapid turnaround: a complete temperature/shear rate map for a lubricant can be completed in around 1 hour.
Technical Specifications
| Shear Rate Range | 1,000,000 reciprocal seconds to 10,000,000 reciprocal seconds |
| Testing Temperature | 40°C to 150°C |
| Test Sample Volume | < 5 ml |
| Flushing Procedure Duration | 10 min |
| Number of pre-set Measurements | unlimited |
| Temperature Target Window | +/- 0.1°C |
| Main Sensor Type | Platinum RTD |
| Safety Sensor Types | Platinum RTD |
| Mains Power | 100 / 240 V, 50 / 60 Hz, 200 W (universal) |
| Weight | 22 Kg / 48.4 lb |
| Dimensions (cm) | 23 (w) x 46 (d) x 46 (h) |
| Dimensions (Inches) | 9 (w) x 18 (d) x 18 (h) |
Main product features
- Mechanical unit including PC with data logging software
- Ability to be able to measure shear rates of up to 10,000,000 reciprocal seconds
- Due to rotor and stator being manufactured from the same material and parallel surfaces, there is no need to calibrate between temperature changes
- User manual, tool set, variable displacement laboratory pipette